Tow/Haul light flashing - Ford Powerstroke Diesel Forum
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Old 02-14-2007, 09:15 PM
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Tow/Haul light flashing

Today I was driving my truck and pulled up next to a cummins at a light with a plow on it, he had stacks and kept reving it up. When the light turned green we took off, We just got 10 inches of snow last night, so there was plenty on the road still. My truck was slipping and grabbing, and all of a sudden my tranny felt like it dropped out completely. I slowed and the Tow/Haul light was flashing on my dash, tranny was shifting horribly and would rev way up over 2500 before shifting hard. I pushed tow button but it wouldnt go out. Got to where I was goin about 1 mile away and shut the truck off. 20 min later when I got back in the light was off and truck was good. Anyone know what that was all about?
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Old 02-14-2007, 10:09 PM
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I cant help you Sean but i will bump this up someone will answer your question .
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Old 02-14-2007, 10:12 PM
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Its like a check engine like. take it in and run the codes.
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Old 02-14-2007, 11:15 PM
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It went into limp mode for some reason like said above hook up a scanner and see what it says. You might be able to take it to a tranny shop and see what they say instead of the stealership.
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Old 02-15-2007, 06:22 AM
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I've seen that happen before when the tranny temps got real warm pulling a long, steep hill with the trailer. I'm sure you already have, but I'd check the tranny fluid level and then get it to the shop.
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Old 02-15-2007, 07:51 AM
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I have an edge juice on it right now, only 31000 miles, so I would take it to the dealership. Probably need to take my edge off?
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Old 02-15-2007, 08:51 AM
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Quote:
Originally Posted by 6.0Sean View Post
I have an edge juice on it right now, only 31000 miles, so I would take it to the dealership. Probably need to take my edge off?
Yea i would take the edge off.
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Old 02-15-2007, 09:31 AM
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My truck did the same thing with the tranny, the tow light flashing, all the same symptoms you described. Took to dealer and they reflashed computer, said that was the problem. It has been two months since with no recurring problems.
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Old 02-16-2007, 12:23 PM
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Edge boxes have been known to cause tranny problems too. Not sure if this is your problem, but I would definitely remove the edge and take it in.
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Old 02-16-2007, 05:54 PM
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My 2005 f-550 service truck had same problem. Took it to dealer,they reflashed the computer. Two days later, it did it again. This time they said the valve body in transmission had cracked in half. May have been from a pressure build up.
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